bike is a library which implements cross-platform Common Lisp interface to .Net Core platform, using lisp compatibility layers.

It allows for interacting with .Net code like this:

(named-readtables:in-readtable bike:bike-syntax) (defun hello () [:System.Console WriteLine "Hello, World!"])

It does also support callbacks:

(use-package :bike) (named-readtables:in-readtable bike-syntax) (import-assembly 'System.Runtime.InteropServices.RuntimeInformation) (use-namespace 'System) (use-namespace 'System.Runtime.InteropServices) (defun hello () (let* ((os [:RuntimeInformation %OSDescription]) (delegate (new '(Action :string) (lambda (who) (format t "Hello ~a!~%You are running .Net Core~% inside ~a ~a~% on ~a" who (lisp-implementation-type) (lisp-implementation-version) os)))) (user [:Environment %UserName])) [delegate Invoke user])) (hello) ;; ==> ;; Hello lovesan! ;; You are running .Net Core ;; inside SBCL 1.5.3 ;; on Linux 4.15.0-1041-aws #43-Ubuntu SMP Thu Jun 6 13:39:11 UTC 2019

It is installable via quicklisp:

(ql:quickload :bike)

Note that to build the library you should have .Net Core SDK installed.

Github page:

License: MIT